Bayesian optimization
Bayesian optimization is a more sophisticated approach to hyperparameter tuning that can be particularly effective for LLMs. It uses a probabilistic model to predict the performance of different hyperparameter configurations and intelligently selects the next configuration to try.
Let’s implement Bayesian optimization using the optuna
library. Optuna is an open source hyperparameter optimization framework for automating the process of finding optimal parameters for algorithms and models. It employs advanced Bayesian optimization techniques, primarily the Tree-structured Parzen Estimator (TPE) algorithm, to efficiently search complex parameter spaces:
- Import optuna and set up the hyperparameters:
import optuna from transformers import Trainer, TrainingArguments import torch def objective(trial): # Define the hyperparameters to optimize hp = { "num_layers...